I liked Mount Pajamaja a lot. The puzzles were fun and the top of the mountain (the snowy part) has an amazing atmosphere.
The Somnom Woods were also really cool. The music and atmosphere were awesome and I liked the part where you had to collect the rail blocks (I don't remember their official name) and place them on the board so they would appear in real life. It kind of reminded me of Skyward Sword's final dungeon.
I didn't like Mushrise Park. It felt way too bland and unoriginal... but then again, it's one of the earliest locations of the game, so I shouldn't expect anything more.
It'll probably come off as a surprise, but I didn't like Neo Bowser's Castle. It felt bland and it dragged out for way too long in my opinion, although I will admit the last dream sections were pretty cool.
